How do you convert utc to date in python?
I've never had to convert time to and from UTC. Recently had a request to have my app be timezone aware, and I've been running myself in circles. Lots of information on converting local time to UTC, which I found fairly elementary (maybe I'm doing that wrong as well), but I can not find any information on easily converting the UTC time to the end-users timezone. Show In a nutshell, and android app sends me (appengine app) data and within that data is a timestamp. To store that timestamp to utc time I am using:
That seems to be working. When my app stores the data, it is being store as 5 hours ahead (I am EST -5) The data is being stored on appengine's BigTable, and when retrieved it comes out as a string like so:
How do I convert this string to a DateTime in the users correct time zone? Also, what is the recommended storage for a users timezone information? (How do you typically store tz info ie: "-5:00" or "EST" etc etc ?) I'm sure the answer to my first question might contain a parameter the answers the second.
martineau 115k25 gold badges160 silver badges284 bronze badges asked Jan 22, 2011 at 20:14
2 If you don't want to provide your own
Edit Expanded example to show Edit 2 Fixed API usage to show better entry point method Edit 3 Included auto-detect methods for timezones (Yarin) answered Jan 23, 2011 at 1:23
Joe HollowayJoe Holloway 27.4k15 gold badges80 silver badges92 bronze badges 24 Here's a resilient method that doesn't depend on any external libraries:
This avoids the timing issues in DelboyJay's example. And the lesser timing issues in Erik van Oosten's amendment. As an interesting footnote, the timezone offset computed above can differ from the following seemingly equivalent expression, probably due to daylight savings rule changes:
Update: This snippet has the weakness of using the UTC offset of the present time, which may differ from the UTC offset of the input datetime. See comments on this answer for another solution. To get around the different times, grab the epoch time from the time passed in. Here's what I do:
answered Oct 8, 2013 at 3:24
David FosterDavid Foster 6,1303 gold badges38 silver badges38 bronze badges 7 See the datetime documentation on tzinfo objects. You have to implement the timezones you want to support yourself. The are examples at the bottom of the documentation. Here's a simple example:
Output
answered Jan 22, 2011 at 21:22
Mark TolonenMark Tolonen 154k23 gold badges162 silver badges233 bronze badges 4 If you want to get the correct result even for the time that corresponds to an ambiguous local time (e.g., during a DST transition) and/or the local utc offset is different at different times in your local time zone then use
answered Oct 2, 2015 at 9:57
jfsjfs 382k180 gold badges944 silver badges1616 bronze badges 0 This answer should be helpful if you don't want to use any other modules besides
If you aren't the one instantiating the date to start with, but you can still create a naive
Be careful not to mistakenly assume that if your timezone is currently MDT that daylight savings doesn't work with the above code since it prints MST. You'll note that if you change the month to August, it'll print MDT. Another easy way to get an aware
If you use Python 2.x, you'll probably have to subclass answered Sep 21, 2017 at 8:53
BrōtsyorfuzthrāxBrōtsyorfuzthrāx 4,0473 gold badges33 silver badges53 bronze badges 0 If using Django, you can use the
funnydman 6,8873 gold badges26 silver badges49 bronze badges answered Aug 4, 2014 at 14:08
frmdstryrfrmdstryr 18.7k3 gold badges37 silver badges30 bronze badges Consolidating the answer from franksands into a convenient method.
answered Feb 21, 2020 at 5:51
MartlarkMartlark 13.5k12 gold badges80 silver badges96 bronze badges You can use arrow
you can feed answered Apr 4, 2018 at 14:07
d21d3qd21d3q 3552 silver badges9 bronze badges 1 The following worked for me in a Cloud environment for US west:
answered May 11, 2021 at 17:08
JieJie 9351 gold badge10 silver badges17 bronze badges 0 You can use
Gives answered Jun 8, 2017 at 15:52
myautmyaut 10.9k2 gold badges28 silver badges61 bronze badges
When I input parameter In my case, my desired format is
answered Oct 17, 2018 at 10:50
1 I traditionally defer this to the frontend -- send times from the backend as timestamps or some other datetime format in UTC, then let the client figure out the timezone offset and render this data in the proper timezone. For a webapp, this is pretty easy to do in javascript -- you can figure out the browser's timezone offset pretty easily using builtin methods and then render the data from the backend properly. answered Jan 23, 2011 at 0:58
1 From the answer here, you can use the time module to convert from utc to the local time set in your computer:
answered Dec 13, 2018 at 11:52
franksandsfranksands 1,67818 silver badges21 bronze badges This worked for me:
ZygD 16.5k37 gold badges68 silver badges88 bronze badges answered Jan 21 at 13:08
Here is a quick and dirty version that uses the local systems settings to work out the time difference. NOTE: This will not work if you need to convert to a timezone that your current system is not running in. I have tested this with UK settings under BST timezone
answered Apr 15, 2013 at 9:38
DelboyJayDelboyJay 2,6691 gold badge12 silver badges17 bronze badges 3 Short and simple:
answered Feb 9 at 18:44
How do I convert UTC timestamp to datetime in Python?Convert Unix time (Epoch time) to datetime : fromtimestamp(). import datetime dt = datetime. datetime. ... . dt_utc_aware = datetime. datetime. ... . dt_utc_naive = datetime. datetime. ... . print(dt) # 1970-01-01 09:00:00 print(dt. timestamp()) # 0.0 print(type(dt. ... . print(dt_utc_aware) # 1970-01-01 00:00:00+00:00 print(dt_utc_aware.. How do I convert UTC to local date?Add the local time offset to the UTC time. For example, if your local time offset is -5:00, and if the UTC time is shown as 11:00, add -5 to 11. The time setting when adjusted for offset is 06:00 (6:00 A.M.). Note The date also follows UTC format.
How do I format a datetime UTC in Python?How to convert local datetime to UTC in Python. local_time = pytz. timezone("America/New_York"). naive_datetime = datetime. datetime. ... . local_datetime = local_time. localize(naive_datetime, is_dst=None) ... . utc_datetime = local_datetime. astimezone(pytz. ... . print(utc_datetime) Output.. What is UTC in date format?UTC() takes comma-delimited date and time parameters and returns the number of milliseconds between January 1, 1970, 00:00:00, universal time and the specified date and time. Years between 0 and 99 are converted to a year in the 20th century (1900 + year) . For example, 95 is converted to the year 1995 .
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